After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

The solar system has nine planets, but in 2006 the International Astronomical Union declared Pluto a dwarf planet, making the ...

Billions of years ago, Earth was home to extreme environments, including intense UV radiation, frequent volcanic eruptions, ...

5️⃣ ‘Saddest thing’: When crews in Rome built a tiny temporary pool in front of the famous Trevi Fountain for tourists to ...

Fastest Known Planetary System May Have Been Pushed by Our Galaxy’s Supermassive Black Hole ...

Tiny grains from a distant asteroid are revealing clues to the magnetic forces that shaped the far reaches of the solar ...

Astronomers are investigating the possibility of a hidden ninth planet beyond Neptune, which could explain unusual orbital patterns in the Kuiper Belt.

The smooth, planet-less disk of the Vega star system challenges planetary formation theories, suggesting alternative cosmic ...

A joint Hubble and James Webb Space Telescope (JWST) project to learn more about the dusty disk around the bright star Vega ...

As technology continues to progress, though, could we uncover a new one? Astrophysicists don't know if there are ...

The Subaru Telescope has discovered new objects beyond the known Kuiper Belt, suggesting a more complex structure at the edge ...

N ASA's planetary defense telescope Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) has burned up in the ...